FRONT END ASSEMBLY
Remove the nose cone and mast.
Determine the length needed for the basebar. This is determined by which brake lever will be installed on the bike. When using TRP HD-T910 it is advisable to trim 3 CM off the ends of each side of the basebar.
If using brake levers with external bar clamps such as the HD-T910, be mindful to install the alloy reinforcement inserts prior to installation of brake lines. When using internally clamped brake levers such as SRAM S900 or Shimano D/A the alloy inserts are not needed.
Run the Etap or Di2 wires in the basebar wings. You can use either exit hole in the bar to run the wires through the stem.
Feed hydraulic brake lines into the basebar. It is important to run the Di2/Etap cables first as the hydraulic lines can make this very difficult.
Run the Di2/Etap cables two to each side within the stem on either side of the mast. This is a tight fit.
Di2/Etap wires run to the nose cone where the Blipbox/B-junction rests. These wires run UNDER the basebar nut plate.
Determining correct hydraulic hose length depends on what brake lever you install. The front end can be assembled by running the hoses through the frame and fork, then trimming the excess from the caliper. Remember to give yourself some slack for future transit.
When installing the mast, it is important to make sure you do not pinch any Etap/Di2 wires inside the stem. This can be done by using the index finger to guide the wires to either side of the mast while installing it into the stem.
Route cables from extensions into the stem and under the basebar nut plate within the stem out to the Blipbox/B-junction.